Title of Invention

ZINC PHOSPHATE TREATMENT LIQUID COMPOSITION FREE FROM GENERATION OF SLUDGE AND ZINC PHOSPHATE TREATMENT METHOD

Abstract A Zinc phosphate treatment liquid, wherein the molar concentration [mol/L]of H3PO4,HNO3 and Zn satisfy the relation of the following formula[Zn]< 0.3[H3PO4]+0.5[HNO3]. This zinc phosphate treatment liquide may contain preferably additives. selected from nitrous acid, permanganic acid, persulphuric acid, hydrogen peroxide, chloric acid, perchloric acid, nitrobenzene sulfonic acid, hydroxylamine, starch phosphate ester, fluorine compounds and salts therrof. The metallic material is treated by means of cathode electrolytic process in zinc phosphate treatment liquide of above. The metallic material may be contacted with a colloidal solution containing titanium oxide, titanium hydroxide and zinc phosphate prior to teh cathodic electrolysis process.
Full Text

Documents:

169-MUM-2000-ABSTRACT(29-2-2000).pdf

169-MUM-2000-ABSTRACT(GRANTED)-(28-2-2012).pdf

169-MUM-2000-AFFIDAVIT(26-6-2000).pdf

169-MUM-2000-CANCELLED PAGES(13-6-2005).pdf

169-MUM-2000-CLAIMS(29-2-2000).pdf

169-MUM-2000-CLAIMS(GRANTED)-(28-2-2012).pdf

169-MUM-2000-CORRESPONDENCE(13-6-2005).pdf

169-MUM-2000-CORRESPONDENCE(IPO)-(29-2-2012).pdf

169-MUM-2000-DESCRIPTION(COMPLETE)-(29-2-2000).pdf

169-MUM-2000-DESCRIPTION(GRANTED)-(28-2-2012).pdf

169-MUM-2000-FORM 1(13-6-2005).pdf

169-MUM-2000-FORM 1(16-9-2004).pdf

169-MUM-2000-FORM 1(29-2-2000).pdf

169-MUM-2000-FORM 19(17-2-2004).pdf

169-MUM-2000-FORM 2(COMPLETE)-(29-2-2000).pdf

169-MUM-2000-FORM 2(GRANTED)-(28-2-2012).pdf

169-MUM-2000-FORM 2(TITLE PAGE)-(29-2-2000).pdf

169-MUM-2000-FORM 2(TITLE PAGE)-(GRANTED)-(28-2-2012).pdf

169-MUM-2000-FORM 3(16-9-2004).pdf

169-MUM-2000-FORM 3(29-2-2000).pdf

169-MUM-2000-FORM 5(16-9-2004).pdf

169-MUM-2000-FORM 5(29-2-2000).pdf

169-MUM-2000-PETITION UNDER RULE 138(26-6-2000).pdf

169-MUM-2000-POWER OF ATTORNEY(29-2-2000).pdf

169-MUM-2000-SPECIFICATION(AMENDED)-(13-6-2005).pdf


Patent Number 251163
Indian Patent Application Number 169/MUM/2000
PG Journal Number 09/2012
Publication Date 02-Mar-2012
Grant Date 28-Feb-2012
Date of Filing 29-Feb-2000
Name of Patentee NIHON PARKERIZING CO. LTD
Applicant Address 15-1, NIHONBASHI, 1-CHOME, CHUO-KU, TOKYO
Inventors:
# Inventor's Name Inventor's Address
1 JUN KAWAGUCHI C/O NIHON PARKERIZING CO. LTD, 15-1, NIHONBASHI, 1-CHOME, CHUO-KU, TOKYO
2 KAZUHIRO ISHIKURA C/O NIHON PARKERIZING CO. LTD, 15-1, NIHONBASHI, 1-CHOME, CHUO-KU, TOKYO
3 TOMOYUKI MANMI C/O NIHON PARKERIZING CO. LTD, 15-1, NIHONBASHI, 1-CHOME, CHUO-KU, TOKYO
PCT International Classification Number C23C22/07
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11-54834 1999-03-02 Japan